Consistency of fracture assessment criteria for the NESC-1 thermal shock test

Rauno Rintamaa, Kim Wallin (Corresponding Author), Heikki Keinänen, Tapio Planman, Heli Talja

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    7 Citations (Scopus)

    Abstract

    In this report, a best estimate analysis of the NESC Spinning Cylinder test is performed and the consistency of the state of the art application of the different fracture parameters and assessments criteria is examined. Direct fracture toughness measurements best describes the fracture behavior of the NESC Spinning Cylinder in the simulated pressurized thermal shock loading. The concept based on the ASME RTNDT reference temperature (either Pellini or Cv test) does not provide consistent description of the NESC1 fracture assessment. In general the fracture mode, i.e. ductile initiation and tearing followed by cleavage event, was successfully estimated by 3D FE based fracture assessment, combined with Master Curve description of fracture toughness.
    Original languageEnglish
    Pages (from-to)125-135
    Number of pages11
    JournalInternational Journal of Pressure Vessels and Piping
    Volume78
    Issue number2-3
    DOIs
    Publication statusPublished - 2001
    MoE publication typeA1 Journal article-refereed

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    Keywords

    • fracture assessment
    • reference temperature
    • master Curve
    • pellini
    • NESC

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